Yakov Shafranovich <research(_at_)solidmatrix(_dot_)com> wrote:
Yes, I read Microsoft's proposals about different types of tricks
for different domains, for example hash cash-type puzzles for
smaller domains in lieu of accreditation. I am still not convinced
that a given ISP will bother with supporting both accreditation and
hash cash, they just might take the easy way out and only support
accreditation services.
So somebody will run an "accreditation" service that says "they
answered a hash-cash request for your message". Yes, this requires
passing the Message-ID around to prevent a DoS attack, and probably
some other tricks; but there's nothing preventing it from happening.
Seth
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